Memory and Retaining

According to Bergson, when Memory is not supplying stored information to current activity, it subsists as an independent Spiritual substance. But, the Past that inhabits Memory can only be constituted as such in relation to current activity. Conversely, the Continuity that he attributes to Locomotion cannot be immediately given to Intuition alone--the Consciousness of that Continuity furthermore requires a Retaining of the data of the surpassed phases of a Locomotive process. In other words, Bergson's presentation of Memory as a Spiritual substance effects an abstraction from the role that Retaining plays in contributing Temporal coherence to Experience.